The Study
Cyclocreatine transport and cytotoxicity in rat glioma and human ovarian carcinoma cells: 31P-NMR spectroscopy.
This study looked at cancer cells in a dish, not in animals or people. It shows what happened when they added a chemical, but we can't say for sure that the chemical caused the changes — it just shows a pattern in these cells.
Analysis score
Maximum 44 for a cross-sectional study.
Where the score came from
Scientists tested a drug called cyclocreatine on two types of cancer cells to see how it stops them from growing.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 56 / 100
Quality score
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1This helps scientists understand how the drug works differently in different cancers, which could help design better treatments.
- 2Cyclocreatine stopped both rat brain cancer cells and human ovary cancer cells from growing.
- 3The drug built up in one type of cell but not the other.
- 4It made the rat cancer cells swell, but not the human ones.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
The American journal of physiology
Year
1996
Authors
Y. Schiffenbauer, G. Meir, M. Cohn, M. Neeman
Related Content
Claims (4)
Cyclocreatine slows down the growth of certain cancer cells in a lab dish, but it doesn’t harm their outer layer or energy supply — so it probably works in a different way.
When scientists gave a substance called cyclocreatine to two types of cancer cells, one kind (from rat brain tumors) stored a modified version of it, but the other kind (from human ovarian tumors) didn't — meaning these cells handle the substance differently.
In rat brain tumor cells, a substance called cyclocreatine gets pulled in using energy and sodium, but when sugar levels drop, this process slows down a lot—showing it needs energy from sugar to work well.
Cyclocreatine kills brain tumor cells in rats by making them swell up, but it stops ovarian cancer cells in humans in a totally different way we don’t yet understand.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.